 |
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: st: subpop question
At 11:14 PM 1/24/2009, Carissa Moffat Miller wrote:
Statalist:
I am fitting a logistic regression model using svy in Stata version
9. I am trying to use the subpop option to focus on only those
adults 55 and older. However, in my logistic model I specifically
want to look at the differences among age categories for
participation in adult education (aepart) so I also have age
categories (AgeCat7) as an independent variable. I have received
messages on my output that indicate putting in age will cause
problems. My questions are:
1. Below is my output, note _IAgeCat7_7 dropped due to
collinearity. This is the category for anyone under 55 so it
shouldn't have been in the model, but does this message indicate
another problem?
You aren't showing your exact commands or your error message, so it
is hard to fully diagnose the problem (or if there even is
one). Just from the output presented, I don't see any obvious
problems. But show everything and we can advise you better.
-------------------------------------------
Richard Williams, Notre Dame Dept of Sociology
OFFICE: (574)631-6668, (574)631-6463
HOME: (574)289-5227
EMAIL: [email protected]
WWW: http://www.nd.edu/~rwilliam
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/